Attachment: PDF blue OneDrive lure

calendar Oct 19, 2026  ยท
Share on: linkedin copy

This rule detects inbound emails containing PDF attachments that match a YARA signature identifying a blue-themed OneDrive lure.

Sublime rule (View on GitHub)

 1name: "Attachment: PDF blue OneDrive lure"
 2description: "This rule detects inbound emails containing PDF attachments that match a YARA signature identifying a blue-themed OneDrive lure."
 3type: "rule"
 4severity: "medium"
 5source: |
 6  type.inbound
 7  and any(filter(attachments, .file_type == "pdf"),
 8          any(file.explode(.),
 9              any(.scan.yara.matches, .name in ("pdf_blue_oneDrive_lure_2"))
10          )
11  )  
12attack_types:
13  - "Credential Phishing"
14tactics_and_techniques:
15  - "PDF"
16  - "Impersonation: Brand"
17  - "Social engineering"
18detection_methods:
19  - "YARA"
20  - "File analysis"
21id: "e408e847-8364-5e4e-ba8b-a11ae846085e"
to-top